Volcanic System Teaching Model State_Solid sized for fine-pitch breadboard work

sized for fine-pitch breadboard work where 4mm hardware is too large for the apparatus

geometry-matched to companion iron

5-3V DC for hands-on motor-action work

Length-adjustable wooden pendulum simple-machine model with a blue bob sliding along the string and a wooden guide keeping the swing on a consistent path for period-vs-length measurements

providing waterproof chemical-resistant splash protection with a smooth nonporous surface that wipes clean

Volcanic System Teaching Model State_Solid sized for fine-pitch breadboard workHand painted volcanic system model on a 75 by 100 cm wall mountable backboard, demonstrating how eruptions unfold and what structural conditions trigger them, with each feature labeled.